Liquid fuel pumping apparatus



Dec. 27, 1932. 5, JONES 1,892,529

LIQUID FUEL PUMPING APPARATUS Filed April 13, 1932 Inventor Fran/m Joseph Staweafim.

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Attorney Patented Dec. 2 7, 1932 tsezsn EEMCIS JQBEPH STAWELL JONES, OF PORTHCAWL, WALES.

ZZEQUZD FUEL PUMPING APPARATUS Application April 13, 1932, Serial no. see

The object of my present invention is to provide an improved construction of suction and compression device particularly suited for use in .raising liquid fuel from a main sn l tank so that it can be transferred f circulated to a carburettor. However, the pumping device can be employed for other purposes provided it is operated by the energy oi a circulated li uid for example lubricating oil y a pump driven by an internal combustion engine. refer to the circulated liquid which operates the pump as being lubricating oil and the liquid which is raised and delivered as'being petrol but I wish it to be understood that the apparatus can be used in connection with other liquids where-the circumstances are analogous.

One embodiment of the invention is shown y the accompanying sheet of drawing in which Fig. l'is a sectional elevation showing the pump during the suction or lifting stage.

Fig. 2 is a detail sectional plan view of the valve system for regulating the supply of circulated lubricating oil to the pump.

Fig. 3 is a detail perspective view of the rotary valve element shown in Fig.2, and

Fi 4 is a detail perspective view of a member connecting-a moving part of the pump to the valve shown in Fig. 3.

In carrying an embodiment of the invention into practice, the pump apparatus consists of the storage chamber 1 above mentioned and a lubricating oil chamber 2 located beneath it, the two chambers being separated by a partition comprising a shallow cylindrical collar 3 w th flanges i to enable the two chambers to be bolted above and below it, the interior of the collar being closed by a horizontal wall 5 which is cast integral with the collar 3 across its upper side. Disposed above this horizontal wall 5 and. accommodated in the upper chamber 1 is a dlaphragni form of pump 6, the diaphragm 9 of which is secured at its outer periphery by being clamped between an annular ring 7 and a shallow dished or cup shaped lower portion 8, this cup shaped lower portion 8 being secured at its centre to a sleeve 10 passlln the description T shall,

.859, and in Great- Britain January 29, 1882.

ingthrough the said horizontal wall, 5. The

annular ring 7 is raised towards its centre and centrally apertured as at M to provide a shallow raised portion 7?) for the flexible diaphragm 9 to be reciprocated at its axis. This flexible diaphragm 9 is an annular member gripped at its inner edge between the pair of discs 7 and 8, a vertical rod 18 slid ably assing through the sleeve 10 with an annu ar clearance, the said'sleeve bein accommodated concentrically within an integral tubular depending central part 11 of the said wall 5. The annular clearance between the rod 18 and the sleeve 10 enables liquid fuel to be drawn into the space between the flexible diaphragm 9 and the shallow cup shaped part 8 to which it is fixed. The upper disc 7 3f th; tilwoddiscs between which the inner e go o t e in hra 9 is ri ed is fitted about a cylindi ical c ii p lta th i aded as at 145 to the rod 18 which is also threaded into the lower end 0;? a coaxial extension 14 sliding freely in a boss 16 in the top of the chamber 1. The diaphragm 9 is gripped at its inner part between a washer 7c and an annular plate 13 between which and a sleeve 15 is interposed a pression spring 140 disposed about the rod 14, the sleeve 15 abutting against the upper end of the said storage chamber 1. This rod 14 is fitted with a suitable knob 17 by means of which it can be engaged and reciprocated axially by hand should it be re uired to start up the operation of the pump y hand such as for example when the main supply tank is emptied and has just been replenished.

The lower end of the rod 18 is carried through a double diaphragm lower pump "19 of smaller capacity than the diaphragm pump 6 already described. This lower diaphragmpump is secured to the sleeve 10 which is fixed relatively to the tubular depending extension 11 of the said horizontal wall 5 and the rod 18 is carried through the lowermost part of this lower pump 19 sothat the diaphragms of the two pumps are connected for operat on in unison, the lower pump acting more after the fashion of a .concertina. The lower pump isimmersed in the lower chamber 2 into which convolute or coiled -comthelower end of I pecans a circulated lubricating oil is delivered so through the flanges 26a and corresponding that the pressure of lubricating oil is adapted flanges on the discs 27 In the'same manner to compress the lower pump a ai'nst the infiuas the annular disc 7 in the upper pump, the ence o the coiled spring 140 a ove mentioned corresponding annular discs 27 of the ower and to expand or raise the diaphragm 9 of pump are raised at their centres and aperthe upper pump 6 so that simultaneously the tured as at 27a to provide space for the diacapacities of the lower pump and the upper phragms to be reciprocated axially relative pump are decreased and increased respecto their peripheries. tively, so that petrol is drawn up through The lower diaphragm 25 of the lower pump 1 a port 35 controlled by a valve 36, the petrol 19 is secured at its inner eriphery between 75 flowing along a horizontal passage 37 into the a shallow cup shaped member 30 and a washupper pump via the sleeve 10 which opens er and nut 31 threaded on a concentric extenat its upper end into the pump 6 and is apersion 33 of such cup shaped member 30. The tured as at 12a in alignment with the passage upper face of the lower cup shaped member 15 37. When the lower pump has been com- 26 is also formed with a concentric tubular pressed a predetermined amount, the supply extension 33a similar to the part 33 and of lubricating oil to the space surrounding this extension 33a also receives a nut and this lower pump is automatically cut off by washer 32. 1 suitably controlled device connected to the The lower end of the reciprocating rod '18 20 lower end oi the lower pump so that the passes through thelower member towhich 85 previously compressed coiled spring14c is the inner edge of the lower diaphragm is allowed to reassert itself and to compress the secured and a nut 34 is threaded upon the upper pump 6 and expand the lower pump lower end of the rod 18. All annular clear- 19 so that petrol flows fr m h pp r p mp ance 39 is provided between the said rod 18 25 via the sleeve 10 and passage 37 through a d the inner part 33a, of the lower cup 90 so which when the petrol in the storage chammember 2 th centre f hi h i suitable valve controlled outlet 38 and is carh d member 26 so th t th liquid flows ried into the chamber 1 accommodating the f l i th Space b t th lower 1' upper pump 6 through a vert al nd 21 phragm and the space above the upper diacontaining a valve controlled opening 22 Phmgm i th upper h ll (311% h ed o rml se- 5 1 Teaches predetermined q y is cured to the lower end of the sleeve 10? automatically closed by a float 23 in the stor- A it bl f f valve f ntrolling age chamber 1 so that ultimately F pp the flow of lubricating oil into and out of the P p 6 can reach a stage when 1t 15 fined on lower or lubricating oil chamber 2 comprises a suction stroke but the petrol in the said cont d h i t l li d i l l g 40 rod it 21 an P 33 37 IOVIdBS hquld block tatable about its axis and slidable longitudiagamst compresslon 0 he pp p p 11111911 nally in a fixed sleeve 41 secured across the Such tlme the hquld fuel in the Swmge end of a port 42 receiving the upper end of chamber fal to allow the float i0 09911 15118 a ipe connected to a suitable point of the 40 Valve 2241i the Said conduit y g g lu ricating oil circuit, and also across an 105 the conlcfil to e upwards agamst outlet port 44 completing returning to the the r a 2 1 be seen h the r s- I 0'11 circuit. A pair of channels 45 and 46 sure of. liquid iuel 1n the vertical conduit i h periphery f th l 40 communicate 21 W111 aSSISt 11141135 Closure at the Ppp one with the inlet and the other with the outpllflm lf A Sultable Outlet U Provldecl is compressed so that oil can flow into and out 111F119 smmg? Chamber 1 to which a P spaces 47 and 48 between the ends of the valve 11111011 and P P can connect 1t float p ug 40 and the closed ends of the sleeve chamber of a carburettor, and an air vent 24 41 wh th lower pump it 19 i 50 is provided in the to? Of the storage chamber tended one of these spaces is adapted to 11 to Obtain a u g y PP Y of Petrol to communicate with the outlet port 44 by a the carburettor. y I passage 49 passing through the plug 40 and The method of constructing the lower terminating at its inner end in a lateral pum 19 can consist in pr vl mg anmlport 49a ada ted at the appropriate moment p g 959k Preferably laminated to register with the outlet port 44. The other 8S SllOWIl and 0f suitable flexible material 5 ace 48 is adapted in a like manner when which will stand up to hard wear, for examt (5 it 19 i compressefl t communicate ple specially treate forms of leather or comwith the inlet port 42 by a passage 50 with position resembling leather whichw ll not be l t l t 50 t, th it d f th 89 rendered hard by the action of petrol, the plug 40, this latter port 50a being adapted 1 same material being used for the iaphragm to i te ith th i l t, t 42 t th 9. Each annular diaphragm is gripped at i propriate moment. outer periphery between'a flange 26a formed Oil from the inlet passage 43 and art 42- on a shallow dished or cup shaped member 26 is admitted into the oil chamber 2 w en the i and an annular disc 27, bolts 28 being passed 'lower unit 19 is extended by bringing a cir-' 1 stage thereby obviating risk of flooding the l Ports 42 d 4 when the pump unit 9 111 ing a chamber adapted to receive liquid fuel other-c is trans to The said slot 54 a into the second mentioned cumferential channel 51 at the centre of the.

plug 40 Pposite the port charged rom the chamber 2 by bringing this circumferential channel opposite the exhaust ort 44, the sequence of operations be ing e ected in; co-operation with the movement of-the lower compressor unit 19.

The valve plug 40 is rotated by being connected for movement to the lower pum 19 y a stirrup shaped arm 52 connected y a lug 53' at its lower end to the lower end of the said vertical rod 18, its being slotted horizontally to receive a radial pin 40a extending from the valve plug 40. allows the pin 40a to move horizontally with the valve plug 40.

What I claim is 1. A. pump for circulating liquid fuel from I a source of supply to a carburettor comprising 'a chamber adapted to receive liquid fuel and a pum other cham er adapted to receive a circulated quid for example lubricating oil, means for ut lizing the energy liquid orlubricating oil delivered into the second mentioned chamber for operating said pump unit, and means connectin the inte-- riors of the said pump and liquid uel receiving chamber whereby-theliquid fuel is transferredfiom said ump unit to the chamber accommodating t e' ump, nd a gravity suppl outlet in sai liquid fuel receiving cham er.

2. A pump for circulatin a source of supply to a car urettor comprisand a ump unit accommodated therein, an-

ber adapted to receive a circulated liquid for example lubricatin oil and isolated from' the first mentioned c amber so that their contents cannot contact witheach other, means for utilizing the energy of the said circulated liquid or lubricating oil delivered chamber for operating said pump unit, and means connectin the interiors of the said pump and chamber whereby the erredfrom said pump chamber accommodating the ump, and a gravity supply outlet in said liquid fuel receiving chamber.

3. A pump for circulating llquid fuel from a source of-supply to a car urettor comprising a chamber adapmd to receive liquid fuel unit accommodated therein, an-

liquid fuel liquid fuel and a um other 0 am r adapted to receive a circulated l quid for example lubricating oil, means for utilizing the energy of the said circulated liquid or lubricatingoil delivered into the second mentioned chamber for operating said pump unit, and means connectin the interiors of the said pump and liquid fuel receiving chamber whereby the liquidfuel is transferred from said pump unit to the chamber accommodating the pump, and a gravity upper end 54' and a pump unit accommodated therein, ans

of the said circulated f mentioned chamber, hquld fuel from unit to the b c amber, a second pump unit mechanically connected to the first mentioned unit and locatedin the said second mentioned chamber, the interiors of the two pump units being connected for receivin liquid'fuel from the same source, the capac1ty of the said second pump unit being less than that of the first mentioned unit, such second pump unit being immersed in the circulated liquid or lubricating oil in the second mentioned chamber and o erated by the energyof said liquid.

4.: pump for circulatm liquid fuel from a source of supply to a' car urettor comprising a chamber adapted to receive liquid fuel unit accommodated therein, another chain or adapted to receive a circulated lated vfrom the first-mentioned chamber so that their contents cannot contact with each other, means for utilizing the energy of the said circulated liquid or lubricating oil delivered into the second mentioned chamber or operating said pump unit, and means connecting the interiors of the said pump and liquid fuel receivin chambervvhereby the liquid fuel is trans erred from said pump supply outlet in said liquid fuel receiving 42, and oil is dish iq'uid for example lubricating oil and isounit to the chamber accommodating the unit mechanically connected to the first mentinned unit and located in the said second the interiors of the two A connected for receiving liquid fuel from the same source, the capacity of'the said second pump unit being less than that of the firstmentioned' uni-t, such second pump unit beingimmersed in the circulated liquid or lubricating oil in the second mentioned chamber and operated by the energy" of said liquid. I r p prising two chambers located one above the other, ahorizontal partition isolatin said pump units being g two chambers from each other, means or admitting liquid fuel to the upper chamber, a flexible diaphragm pump in the up er chamer, valve controlled inletsand outlhts in the lower chamber for controlling the flow of a circulated liquid-for example lubricating oil I to and from the lower chamber, a flexible dialower chamber,

con

phragm form of pump inthe I the interiors ofsaid. two pumps bein nected by a passage. passing throng said partition to a common source of liquid fuel supply and .alsoto the interior of said upper chamber, the capacityof the lower pump being less than that of the on per pump,means for isolating the interior 0 the upper chamber from said passage. when a predetermined quantity of liquid fuel has been delivered to said upper chamber, and a gravity supply out let in said upper chamber. f

6. A pump for circulating liquid fuel comprising two flexible diaphragm pumps the forcirculating liquid fuel comlarger capacity pump,

space surrounding t e larger ca acity pump,

a valve operated from the sma ler capacity pump and adapted'to o n and close inlet and outlet ports for control ing thesupply of said circulated liquid to the chamber accommodating the smaller capacity pump for operatin the two pumps.

l. A pump for circulating liquid fuel comprising two flexible diaphragm pumps the interiors of which are connected to each other and to a common source of liquid fuel supply, one being of larger capacity than the other, two chambers isolated from each other, one of which is adapted to receive li uid fuel from the said pumps and accommo ates the larger capacity pump, the other chamber being adapted to e connected to an available liquid circulating system and accommodating the pump of smaller capacity, a valve con-V trolled passage connecting the interiors of said pumps to the liquid fuel receiving chamber for transferring the liquid fuel to the space surrounding t e larger capacity pump, a valve operated from the smaller capacity pump and adapted to 0 en and close inlet and outlet ports for control ing the supply of said circulated liquid to the chamber accommodating the smaller capacity pump for operating the two pumps, a float in the liquid fuel receiving chamber and a valve opened and closed by said float for isolating the liquid fuel receiving chamber from the pumps when the liquid fuel reaches a predetermined level in the appropriate chamber.

8. A pump for circulating liquid fuel comprising two flexible diaphragm pumps, the interiors. of which are connected to each other. and to a common source of liquid fuel su ply, one being of larger capacity than the ot ier, two chambers isolated from each other, one of which is adapted to receive liquid fuel from the saidpumps and accommodates the larger capacity pump, the other'c'hamber being adapted to be connected to an available liquid circulating system and accommodating the pump of smaller capacity, a valve controlled passage connectin the interiors of said pumps to the liqui fuel receiving chamber for transferring the liquid fuel to the space surrounding the larger capacity pump a valve operated from the smaller capacity pump andadapted to open and close inlet and- .outlet ports for controlling the supply of said circulated liquid to the chamber accommodating the smaller capacity pump for operating the two pumps, a float in the liqui fuel receiving chamber and a valve opened and closed by said float for isolating the liquid fuel receiving chamber from the pumps when reaches a predetermined level in the appropriate chamber, said valve being located beneath a port and adapted to be seated upwards against said port, a vertical conduit containing said port and connected to "said valve controlled passage.

9. A pump for circulatin liquid fuel from a source of supply to a car urettor comprising a chamber adapted to'receive liquid fuel and a pump unit accommodated therein, an other chamber adapted to receive a circulated liquid, for example lubricating oil, means for utilizing the energy of the said circulated liquid or lubricating oil delivered into the second mentioned "chamber for op-' erating said pump unit, and means connect-' ing the interiors of the said pump' and liquid fuel receiving chamber whereby the liquid fuel is transferred from" said ump unit to the chamber accommodating t e ump, and a gravity supply outlet in said iquid fuel receiving chamber, a second ump unit mechanically connected to the rst mentioned unit and located in the said second mentioned chamber the interiors of the two pum units being connected for receiving iquid fuel from the same source, the capacity of the sai "second pump unit being less than that of the first mentioned unit, such second (pump unit bein immersed in the circulate 1i uid or lubricating oil in the second mention chamber and operated by the energy of said liquid, a float in the liquid fuel receiving chamber and a valve 0 ened and closed by said float for isolatin t e liquid fuel receiving chamher from t e pumps when the liquid fuel reaches a predetermined level in the appropriate chamber. Y

10. A pump for circulatin liquid fuel from a source of supply to a car urettoncomrising a chamber adapted to rece1ve' l1qu1d e1, a ump unit accommodated therein, another chamber adapted to receive a circulated li uid for example lubricating oil, means for utilizing the ener of the said circulated liquid or lubricating second mentioned chamber for operating said pump unit, and means connecting the interiors of the said plum and liqui ceiving chamber w ere y the liquid fuel is transferred from said pump unit to the chamber accommodating the pum and a' gravity supply outlet in said liqui fuel receiving chamber, a second pump unit mechanicegg connected to the first mentioned unit loca in the said second mentioned chamber thethe liquid fuel oil delivered into the fuel re-' nected for receiving liquid fuel from the same source the capacity of the said second pump unit being less than that of the first mentioned unit, such second immersed in the circulated eating oil in the pum unit being liquid or lubrisecond mentioned chamber and operated by the energyiof said liquid,'a float in the liquid fuel receiving chamber and a valve opened and closed by said float for isolating the liquid fuel receiving chamber from the pumps when the liquid fuel reaches a predetermined level in the appropriate chamber, said valve being located beneath a port and adapted to be seated upwards against saidport, a vertical conduit containing said port and connected to said valve controlled passa e.

11. A pump or circulating liquid fuel comprising two flexible diaphragm pumps the interiors of which are connected to each other and to a common source of liquid fuel su ply, one being of larger capacity than the otl fer, two chambers isolated from each other one of which is adapted to receive li uid fuel from the said pumps and accommodates the larger capacity ump, the other chamber being adapted to e connected to an available liquid circulatin system and accommodating the pump of smaller capacity, a valve controlled passage connecting the interiors of said umps to the liquid fuel receiving chamber or transferring the liquid fuel to the space surrounding the larger capacity pump, a valve operated from the smaller capacity pump and adapted to open and close inlet and outlet ports for cont-rolling the supply of said circulated liquid to the chamber accommodating the smaller capacity pump for operating the two pumps, said pump of larger capacity comprising an annular flexible diaphragm gripped at its inner periphery between two abutments movable in unison with a reciprocating member mechanically connecting the two of said diaphragm being grippe between a? annular plate and a stationary dished p ate. a

12. A pump for circulating liquid fuel comprising two flexible diaphragm pumps the mteriors of which are connected to each other and to a commonsource of liquid fuel supply, one being of larger capacity than the other, two chambers isolated from each other, one of which is adapted from the said pumps andaccomm ates the larger capacity pump, the other chamber being adapted to be connected to an available liquid circulating system and accommodating the pump of smaller capacity, a valve controlled passage connectingthe interiors of said pumps to the liquid fuel receiving chamber for transferring the liquid fuel to the space surroundin the larger ca acity pump, a valve operates from the smal er capacity pump and adapted toopen and close --'nular flexible diap ,ner periphery between two a .a further pair of like plates pumps, the outer (periphery to receive li uid fuel inlet and outlet ports for controllin the supply of said circulated liquid to-the c amber accommodating the smaller capacity pump for operating the two pumps, said pump of larger ca acity comprising an anragm gripped-at its inutments mova-blein unison with a reciprocating member mechanically'connecting the two pumps, the outer .peripheryof said dia 'hragm being gripped between an annular p ate and a stationary dished plate, said annular plate be I mg open at its centre to expose the dia hragm and to' freely permit movement re atively thereto of sa d abutments and the inner ,pe riphery of the diaphragm.

13. A pump for circulating liquid fuel comprising two flexible diaphragm pumps the interiors of which are connected to each other and to a common source of liquid fuel supply, one being of larger capacity than the other, two chambers isolated from each other, one of which is from the said pumps and larger capacity ump, the other chamber being adapted to e connected to an available liquid circulating s stem and accommodating the pump of smal er capacit a valve controlled passage connecting t e interiors of said umps to the liquid fuel receiving chamber or transferrin space surrounding the larger ca acity pump, a valve operated from the sma ler capacity pump and adapted to open and close inlet and outlet ports for controlling the supply of said circulated liquid to the chamber ac-- commodating the smaller ca acity pump for operating the two pumps, said pump of smaller capacity comprising two flexible diaphragms located in spaced relationship, a dished plate and an annular plate between which one of the said diaphragms is grip ed,

etween w ich the other diaphragm is gripped the dished part of the dished plates appropriate to one of the diaphragms slidably entering the in-. terior of the annular plate ap ropriate to the other diaphragm, the other dished plate being stationary, the diaphra of the slidable dished plate being grippe at its inner periphery between a pair of abutments, such abutments being secured to a reciprocating member mechanically connecting the two pumps.

14. A pump for circulating liquid fuel from a source of supply to a car urettor comprising a chamber adapted to receive liquid fuel and a pump unit accommodated therein, another chamber adapted to receive a circ u lated liquid for example lubricatin oil, means for utilizing the energy culated liquid or lubricating oil delivered into the second mentioned chamber for operating said pump-unit, and means connecting the interiors of the said pump and liquid accommodates the of the said cirfuel receiving chamber whereby the liquid plate being grip d at its inner peri hery be- ,fuel is transferred from said pump unit to the tween a pair abutments, such a utments chamber accommodating the amp, and a being secured to a reciprocating member megravity suppl outlet in said liquid fuel rechanically connectln the two ceiving cham r, a second pump unit me- Inwrtness hereof have signed t is speci- 7o chanically connected to the first mentioned ficatlon. unit and located in the said second mentioned chamber the interiors of the two pump units being connected for receiving liquid fuel 1 from the same source, the capacity of the said second pump unit being less than that of the first mentioned unit, such second pump unit being immersed in the circulated li uid or lubricating oil in the second mentione cham 1 her and operated by the energy of said liquid,

said pum of larger capacity comprising an. annular exible diaphragm ipped at its inner periphery between two a utments movable in unison with the reciprocating member 20 mechanically connecting the two pumps, the 35 outer periphery of said dia hragm being gripped between an annular p ate and a stationary dished plate, said annular plate being open at its centre to expose the dia hragm g and to freely permit movement relatively thereto of said abutments and the inner peripher of the-diaphra m.

15. pump for circu ating liquid fuel from a source of supply to a carburettor compris- 80 ing a chamber adapted to receive liquid fuel and a pum unit accommodated therein, another cham er adapted to receive a circulated 1i uid for example lubricating oil, means for ut1lizing the energy of the said circulated FRANCE JOSEPH STAWELL JONES.

$5 liquid or lubricating oil delivered into the second mentioned chamber for operating said pump unit and means connecting the interiors of the said pump and liquid fuel receiving chambers whereby the liquid fuel is 40 transferred from said pump unit to the chamber accommodating the pum and a gravity suppl outlet in said liqui fuel re ceiving cham er, a second pump unit mechanically connected to the first mentioned 45 unit and located in the said second mentioned chamber the interiors of the two pum units being connected for receiving liqui fuel a from the same source, the capacity of the said second pump unit being less than that of W the first mentioned pump unit, such second 116 pump unit being immersed in the circulated liquid or lubricatin oil in. the second mentioned chamber an operated by the energy of said liquid, said pump of smaller capacity l 55 comprising two flexible diaphragms located 120 in spaced relationship, a dis ed plate and an annular plate between which one of the said diaphragms is gripped, a furtherpair of like plates between which the other diaphragm is gripped, the dished part of the dished plates a propriate to one of the diaphra ms slidab y entering the interior of the 'annu ar plate appropriate to the other diaphragm', the other dished plate bein stationary, the diaphragm, of the slidable shed 

